Improve compact file generation.

src/generate-helper-compact.js

+module.exports = function (generateEntry, generateComment) {
+	return function (data) {
+		var entries = {};
+		data.hosts.forEach(function (block) {
+			block.items.forEach(function (item) {
+				if (item.comment === undefined) {
+					if (entries[item.ip] === undefined) entries[item.ip] = [];
+					if (item.domain !== undefined) entries[item.ip].push(item.domain);
+					else {
+						item.domains.forEach(function (domain) {
+							entries[item.ip].push(domain);
+						});
+					}
+				}
+			});
+		});
+		var output = '';
+		output += generateComment(data.header) + '\n';
+		for (var ip in entries) {
+			output += generateEntry(ip, entries[ip]) + '\n';
+		}
+		output += '\n' + generateComment(data.footer);
+		return output;
+	};
+};

src/generate-helper.js

-module.exports = function (generateEntry, generateComment, compact = false) {
+module.exports = function (generateEntry, generateComment) {
 	return function (data) {
 		var output = '', blocks = [];
 		output += generateComment(data.header) + '\n';
@@ -10,7 +10,6 @@ module.exports = function (generateEntry, generateComment, compact = false) {
 					tmp += generateComment(item.comment);
 				} else {
 					if (item.domain !== undefined) tmp += generateEntry(item.ip, item.domain) + '\n';
-					else if (compact) tmp += generateEntry(item.ip, item.domains) + '\n';
 					else {
 						item.domains.forEach(function (domain) {
 							tmp += generateEntry(item.ip, domain) + '\n';

src/generators/hosts-compact.js

@@ -2,12 +2,11 @@ module.exports = {
 	fileName: 'hosts-compact',
 	generate: (function () {
 		var generateEntry = function (ip, domain) {
-			if (Array.isArray(domain)) domain = domain.join(' ');
-			return `${ip}\t${domain}`;
+			return `${ip}\t${domain.join(' ')}`;
 		};
 		var generateComment = function (data) {
 			return data.replace(/^(.)/gm, '# $1');
 		};
-		return require('../generate-helper')(generateEntry, generateComment, true);
+		return require('../generate-helper-compact')(generateEntry, generateComment);
 	})()
 };